Ink jet recording method - Patent 0572032

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(11)

EP 0 572 032 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	23.03.1994 Bulletin 1994/12

(43)	Date of publication A2:
	01.12.1993 Bulletin 1993/48

(21)	Application number: 93108684.7

(22)	Date of filing: 28.05.1993

(51)	International Patent Classification (IPC)⁵: B41J 2/16

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

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Priority:

29.05.1992 JP 139171/92

(71)	Applicant: CANON KABUSHIKI KAISHA
	Tokyo (JP)

(72)	Inventors:
	Hasegawa, Kenji, c/o Canon Kabushiki Kaisha Tokyo 146 (JP) Toma, Koichi, c/o Canon Kabushiki Kaisha Tokyo 146 (JP) Kimura, Isao, c/o Canon Kabushiki Kaisha Tokyo 146 (JP) Shiozaki, Atsushi, c/o Canon Kabushiki Kaisha Tokyo 146 (JP)

(74)	Representative: Bühling, Gerhard, Dipl.-Chem. et al
	Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4 80336 München 80336 München (DE)

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References cited: :


	Remarks:
	A request for correction of the description has been filed pursuant to Rule 88 EPC. A decision on the request will be taken during the proceedings before the Examining Division (Guidelines for Examination in the EPO, A-V, 2.2).

(54)	Ink jet recording method

(57) An ink directly contacts a heating resistor(3) which constructs a portion of an electrothermal transducer. The ink is ejected from orifices by using thermal energy generated by supplying an electric current to the heating resistor(3). The concentration of alkali metal ion is equal to or less than 5×10⁻³ mol/l. The direction of supplying the ink to the heating resistor(3) and that of ink ejection may be either parallel to or orthogonal to each other.

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